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Breadth of rectangle = 8cm

Length of rectangle = 25 – 8 = 17cm

Area of triangle DBC = (1/2)(base)(height) = (1/2) * 17 * 8 = 68 cm²

Area of triangle DHC = (1/2)(base)(height) = (1/2) * 17 * 2 = 17 cm²

So area of triangle DBH = 68 – 17 = 51 cm²

BH = 8 – 2 = 6cm

So area of triangle BHF = (1/2)(base)(height) = (1/2) * 6 * 8 = 24 cm²

Total shaded area = 51 + 24 = 75 cm² #

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